Career
Kosar wrote the script for The Machinist while attending the graduate screenwriting program at the University of California, Los Angeles School of Theater, Film and Television. The movie became notorious for actor Christian Bale"s dramatic weight loss (Bale dropped his weight to 120 pounds for the film) and was described by Stephen Holden of the New York Times as "one of the few movies to scale the barrier between chilly fantasy and authentic cinematic nightmare."
During the years that it took for The Machinist to be produced, the script attracted the attention of producer-director Michael Bay, who hired Kosar to write The Texas Chain Saw Massacre remake. The box office success of that remake led Kosar to another collaboration with Bay"s company with the remake of The Amityville Horror.
Kosar was appointed the Hunter/Zakin screenwriting chair at University of California, Los Angeles for 2009-2010.
In February 2010 began with the re-writing of the Pre-Dracula flick Vlad.
